Natural resistance of soybean cultivars to the soybean looper larva Chrysodeixis includens (Lepidoptera: Noctuidae)

Wille, Paulo Eduardo; Pereira, Bruna Angelina; Wille, Cleiton Luiz; Restelatto, Samanta Souza; Boff, Mari Inês Carissimi; Franco, Cláudio Roberto

doi:10.1590/s0100-204x2017000100003

Cited by 11 publications

(6 citation statements)

References 21 publications

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“…Caterpillars that had significant occurrence were H. armigera and C. included in the BMX Potência cultivar, regardless of the crop cycle, which is expected, since the cultivar does not have Bt protein (Wille et al, 2017). Among the Bt protein cultivars, BMX Ponta deserves mention, due to the lower occurrence of pest insects during both crop cycles ( Figures 1A and B).…”

Section: Resultsmentioning

confidence: 78%

Performance of soybean cultivars in integrated pest management in lowland agroecosystem

Fernandes

Rosa

Abreu

et al. 2020

Agraria

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Soybean crop represents a large economic share in the Brazilian agricultural production. In Rio Grande do Sul (RS), with each new crop cycle there is an increase in the area under cultivation. In the lowland environment, the crop covers 5.4 million hectares, corresponding to about 20% of the State total area. Using transgenic cultivars whose main advantage is controlling target insects, as well as the reduced number of insecticide applications throughout the crop can be a viable alternative. However, the high cost of transgenic seed is considered as the main disadvantage in adopting this technology. The objective of this study was to evaluate the performance of cultivars RR1 and RR2 in relation to the occurrence of caterpillars and stink bugs, as well as to evaluate the production cost. The experiment was set up at Embrapa Clima Temperado in the crop seasons of 2014/2015 and 2015/2016, with conventional cultivars (BMX Potência (RR1 6.7)) and Bt isolines (BMX Ponta (IPRO 6.6)) and BMX Vanguarda (IPRO 6.0)). BMX Potência cultivar showed a higher incidence of defoliating caterpillars and Nezara viridula stinkbug, but it is the most indicated cultivar, among those evaluated, for the south lowland environment of RS, due to its yield and profitability.

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Section: Resultsmentioning

confidence: 78%

Performance of soybean cultivars in integrated pest management in lowland agroecosystem

Fernandes

Rosa

Abreu

et al. 2020

Agraria

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“…yield (OLIVEIRA et al, 2014;SILVA et al, 2020). Velvetbean caterpillar, Anticarsia gemmatalis Hübner, 1818 (Lepidoptera: Erebidae), and soybean looper, Chrysodeixis includens (Walker, [1858]) (Lepidoptera: Noctuidae), are the two main soybean defoliator pests in Brazil (BUENO et al, 2011;WILLE et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Comparative susceptibility of Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) to insecticides

et al. 2022

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Chrysodeixis includens (Walker) and Anticarsia gemmatalis Hübner are important soybean defoliators. The chemical control of A. gemmatalis has been easier and more effective than that of C. includens. It is hypothesized that C. includens is natural tolerant to insecticides. This study quantified and compare the susceptibility of C. includens and A. gemmatalis to the insecticides flubendiamide, methomyl, and spinetoram. A susceptible population of each species, maintained under laboratory conditions without insecticides selection pressure for more than 17 generations, was used. Ingestion bioassays using five to eight concentrations of each insecticide applied on the artificial diet surface were used to estimate the LC50 and LC99 (LC = Lethal Concentration). The tolerance ratio (TR) was calculated by dividing the LC50 or LC99 of the most tolerant species by the respective value of the most susceptible species. Chrysodeixis includens was more tolerant to all insecticides tested than A. gemmatalis, with TR50 values of 45.9-, 10.0- and 2.6-fold for methomyl, flubendiamide, and spinetoram. These findings indicated that the risk of evolution of resistance may be higher for C. includens than A. gemmatalis due to differential survival when exposed to the same dose of insecticide applied in soybean fields. Therefore, to improve the control of both species, integrated pest management (IPM) and insect resistance management (IRM) strategies should be considered to avoid control failures in field conditions.

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“…Para assegurar a produtividade da cultura e aumentar os rendimentos do país com o comércio interno e exportação da soja, é necessário agregar valores ao produto, tornandoo assim mais competitivo em âmbito mundial. Os estresses bióticos têm sido objeto de grande preocupação no agronegócio da soja, uma vez que o ataque dos patógenos tem acarretado redução de produtividade nas principais regiões produtoras (OLIVEIRA et al, 2014;WILLE et al, 2017). No Brasil, a safra sofreu grandes perdas em virtude da ocorrência da praga, Helicoverpa armigera, que atacou tanto as folhas quanto as vagens da soja (TAY et al, 2013).…”

Section: Introductionunclassified

MELHORAMENTO DE SOJA VISANDO RESISTÊNCIA À helicoverpa armigera: UMA REVISÃO E PERSPECTIVAS FUTURAS/ Soybean breeding aiming at resistance to Helicoverpa armigera: a review and future prospects

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Costa

2021

J.Interdisc.Bio.

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A soja (Glycine max L.) é um dos produtos agrícolas mais importantes para o Brasil, além disso, é uma rica fonte de proteína e óleo para nutrição humana. A produtividade das plantas de soja pode ser severamente prejudicada pelo inseto Helicoverpa armigera, que foi oficialmente detectado, no Brasil, durante a safra 2012/2013. A principal estratégia de gerenciamento para essa praga é o controle químico e plantas Bt. No entanto, métodos menos agressivos devem ser incorporados para o manejo sustentável, como a obtenção de genótipos resistentes. Nesse sentido, o presente trabalho consiste em uma pesquisa bibliográfica sobre os estudos de melhoramento genético de soja que visem à obtenção de genótipos resistentes à H. armigera. Para tanto, foram selecionados artigos nacionais e internacionais que abordassem o tema. Conforme os dados obtidos, as cultivares BP, M4, Sahar, JK, L17, Gorgan3, PI 227687, PI 274453, PI 274454, PI 229358, PI 171451, IAC 17 e IAC 19 apresentam resistência à H. armigera e poderão ser incorporadas aos programas de melhoramento brasileiro. De modo geral, acredita-se que esta pesquisa servirá como material de referência para apoiar pesquisadores na condução de estudos futuros que visem ao melhoramento de soja.

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Natural resistance of soybean cultivars to the soybean looper larva Chrysodeixis includens (Lepidoptera: Noctuidae)

Cited by 11 publications

References 21 publications

Performance of soybean cultivars in integrated pest management in lowland agroecosystem

Performance of soybean cultivars in integrated pest management in lowland agroecosystem

Comparative susceptibility of Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) to insecticides

MELHORAMENTO DE SOJA VISANDO RESISTÊNCIA À helicoverpa armigera: UMA REVISÃO E PERSPECTIVAS FUTURAS/ Soybean breeding aiming at resistance to Helicoverpa armigera: a review and future prospects

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